Shell-mediated tunnelling between (anti-)de Sitter vacua

Details Shell-mediated tunnelling between (anti-)de Sitter vacua Shell-mediated tunnelling between (anti-)de Sitter vacua

2007-04-09

arxiv.org/abs/0704.1073v3

Phys.Rev.D76:064020,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

LaTeX, 23 pages, 20 figures: in print on Phys. Rev. D; structure of the paper streamlined, some typos corrected, one reference

Scientific paper

10.1103/PhysRevD.76.064020

We give an extensive study of the tunnelling between arbitrary (anti-)de Sitter spacetimes separated by an infinitesimally thin relativistic shell in arbitrary spacetime dimensions. In particular, we find analytically an exact expression for the tunnelling amplitude. The detailed spacetime structures that can arise are discussed, together with an effective "regularization scheme" for "before tunnelling" configurations.

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